Which statement about chymotrypsinogen is correct?
a. It is activated by enterokinase.
b. Once activated, it is involved in protein digestion.
c. It is secreted by the endocrine pancreas.
d. All of the above
e. None of these
B
Anatomy & Physiology
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The action potential of a muscle fiber occurs
A. at the end plate. B. along the sarcolemma and down the T-tubules. C. within the sarcoplasmic reticulum. D. in the mitochondria.
Anatomy & Physiology
In the Krebs cycle, citric acid is followed by ________ acid.
Fill in the blank(s) with the appropriate word(s).
Anatomy & Physiology
Macula densa cells signal granular cells to release renin through paracrine stimulation.
Answer the following statement true (T) or false (F)
Anatomy & Physiology
The brain is formed from ________.
A. epithelial tissue B. muscle tissue C. connective tissue D. nerve tissue
Anatomy & Physiology